Spin-dependent transport in multi-terminal Aharonov-Casher ring with quantum dot

Taku Matsunaga, Rui Sakano, Mikio Eto

研究成果: Conference article査読

1 被引用数 (Scopus)

抄録

The Aharonov-Casher (AC) effect is theoretically examined in a mesoscopic ring with an embedded quantum dot in a multi-terminal geometry. We examine a realistic model for such a system with spin-orbit interaction in the ring. A spin-polarized current can be generated in a three-terminal device even in the absence of magnetic field, whereas it cannot in a two-terminal device. The spin polarization is enhanced by the resonant tunneling around the Coulomb peak and Kondo effect in the Coulomb blockade regime. The efficiency for the spin polarization is discussed in realistic devices.

本文言語English
論文番号012059
ジャーナルJournal of Physics: Conference Series
864
1
DOI
出版ステータスPublished - 2017 8 15
イベント33rd International Conference on the Physics of Semiconductors, ICPS 2016 - Beijing, China
継続期間: 2016 7 312016 8 5

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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